using BumpCombat.Audio;
using BumpCombat.Core;
using BumpCombat.Progression;
using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.UI;

namespace BumpCombat.UI
{
    public sealed class RunClearPanel : MonoBehaviour
    {
        private GameObject panel;
        private Text titleText;
        private Text statsText;
        private Text restartText;
        private bool isShown;

        private void Start()
        {
            CreatePanel();
            if (RunManager.Instance != null)
            {
                RunManager.Instance.OnRunCleared += HandleRunCleared;
            }
        }

        private void OnDestroy()
        {
            if (RunManager.Instance != null)
            {
                RunManager.Instance.OnRunCleared -= HandleRunCleared;
            }
        }

        private void Update()
        {
            if (!isShown || Keyboard.current == null)
            {
                return;
            }

            if (Keyboard.current.rKey.wasPressedThisFrame)
            {
                RunManager.Instance?.RestartRun();
            }
            else if (Keyboard.current.escapeKey.wasPressedThisFrame)
            {
                RunManager.Instance?.RestartToTitle();
            }
        }

        private void HandleRunCleared()
        {
            isShown = true;
            panel.SetActive(true);
            BumpCombatAudioService.Instance?.PlayUi("ui_confirm");

            float elapsed = RunManager.Instance != null ? RunManager.Instance.ElapsedTime : 0f;
            int minutes = Mathf.FloorToInt(elapsed / 60f);
            int seconds = Mathf.FloorToInt(elapsed % 60f);

            ExperienceSystem exp = FindAnyObjectByType<ExperienceSystem>();
            int level = exp != null ? exp.Level : 1;

            statsText.text = RunManager.Instance != null && RunManager.Instance.IsDefensePrototypeRun ? $"CLEAR TIME: {minutes:D2}:{seconds:D2}\nCONSTRUCTION REWARD COLLECTED\nDEFENSE TEST CLEARED" : $"CLEAR TIME: {minutes:D2}:{seconds:D2}\nFINAL LEVEL: LV {level}\nSTAGE: 3 / 3 COMPLETED";
        }

        private void CreatePanel()
        {
            Canvas canvas = GetComponentInParent<Canvas>() ?? FindAnyObjectByType<Canvas>();
            if (canvas == null)
            {
                return;
            }

            panel = new GameObject("RunClearPanel");
            panel.transform.SetParent(canvas.transform, false);
            RectTransform panelRect = panel.AddComponent<RectTransform>();
            panelRect.anchorMin = Vector2.zero;
            panelRect.anchorMax = Vector2.one;
            panelRect.offsetMin = Vector2.zero;
            panelRect.offsetMax = Vector2.zero;

            // Background dark dim with gold tint
            Image bg = panel.AddComponent<Image>();
            bg.color = new Color(0.08f, 0.08f, 0.04f, 0.94f);

            // Title
            GameObject titleObj = new GameObject("ClearTitle");
            titleObj.transform.SetParent(panel.transform, false);
            titleText = titleObj.AddComponent<Text>();
            titleText.font = Resources.GetBuiltinResource<Font>("LegacyRuntime.ttf");
            titleText.fontSize = 42;
            titleText.fontStyle = FontStyle.Bold;
            titleText.alignment = TextAnchor.MiddleCenter;
            titleText.color = new Color(1f, 0.85f, 0.25f);
            titleText.text = RunManager.Instance != null && RunManager.Instance.IsDefensePrototypeRun ? "★ DEFENSE TEST CLEARED ★" : "★ RUN CLEAR ★";
            RectTransform titleRect = titleObj.GetComponent<RectTransform>();
            titleRect.anchorMin = new Vector2(0f, 0.6f);
            titleRect.anchorMax = new Vector2(1f, 0.8f);
            titleRect.offsetMin = Vector2.zero;
            titleRect.offsetMax = Vector2.zero;

            // Stats
            GameObject statsObj = new GameObject("ClearStats");
            statsObj.transform.SetParent(panel.transform, false);
            statsText = statsObj.AddComponent<Text>();
            statsText.font = Resources.GetBuiltinResource<Font>("LegacyRuntime.ttf");
            statsText.fontSize = 20;
            statsText.alignment = TextAnchor.MiddleCenter;
            statsText.color = new Color(0.9f, 0.9f, 0.95f);
            statsText.lineSpacing = 1.4f;
            RectTransform statsRect = statsObj.GetComponent<RectTransform>();
            statsRect.anchorMin = new Vector2(0.1f, 0.35f);
            statsRect.anchorMax = new Vector2(0.9f, 0.55f);
            statsRect.offsetMin = Vector2.zero;
            statsRect.offsetMax = Vector2.zero;

            // Restart Hint
            GameObject restartObj = new GameObject("ClearRestartHint");
            restartObj.transform.SetParent(panel.transform, false);
            restartText = restartObj.AddComponent<Text>();
            restartText.font = Resources.GetBuiltinResource<Font>("LegacyRuntime.ttf");
            restartText.fontSize = 16;
            restartText.alignment = TextAnchor.MiddleCenter;
            restartText.color = new Color(0.7f, 0.7f, 0.75f);
            restartText.text = "[R] 키로 재시작   |   [ESC] 키로 타이틀로 이동";
            RectTransform restartRect = restartObj.GetComponent<RectTransform>();
            restartRect.anchorMin = new Vector2(0f, 0.15f);
            restartRect.anchorMax = new Vector2(1f, 0.25f);
            restartRect.offsetMin = Vector2.zero;
            restartRect.offsetMax = Vector2.zero;

            panel.SetActive(false);
        }
    }
}